CN220021698U - Rotatable contact type plug-in structure - Google Patents

Abstract

The utility model relates to a rotatable contact type plug-in structure which comprises a plug and a socket, wherein the plug is in a cylindrical shape, negative electrode contact rings are arranged at the top and bottom ends of the plug, and a positive electrode contact surface is arranged in the middle of the plug; the socket is provided with a socket for inserting the plug and providing a plug rotation space, a negative electrode elastic strip and a positive electrode elastic strip are arranged in the socket, the two negative electrode elastic strips respectively correspond to the negative electrode contact rings at two ends of the plug, and the positive electrode elastic strip corresponds to the positive electrode contact surface; the middle part of the positive electrode elastic strip and the middle part of the negative electrode elastic strip are concave downwards to form a connecting port, and the top of the connecting port of the negative electrode elastic strip is narrowed to form an elastic limiting part for limiting the plug. After the plug is inserted into the socket, the plug can be rotated in the socket, so that the direction of the plug wire can be flexibly adjusted to adapt to specific use scenes.

Description

Rotatable contact type plug-in structure

Technical Field

The utility model relates to the field of power supply plug-in structures, in particular to a rotatable contact type plug-in structure.

Background

The plug and socket are usually plug-in structure, there are two-pin plug-in structure and triangle plug-in structure, after this type plug is inserted into the socket, it is fixed connection, namely plug and socket are relatively fixed. The direct-insertion type DC plug can rotate in the jack along the central axis of the plug, but the connection reliability of the plug and the socket can be affected in the rotation process, wires of the plug cannot swing flexibly relative to the socket, and a user cannot flexibly adjust the direction of the wires of the plug according to the actual situation of a use scene.

The problems are worth solving.

Disclosure of Invention

In order to solve the problem that in the existing plug and socket plug structure, the plug and socket are relatively fixed, wires of the plug cannot swing back and forth relative to the socket, and the directions of the wires are limited, the utility model provides a rotatable contact type plug structure.

The technical scheme of the utility model is as follows:

the rotatable contact type plug-in structure comprises a plug and a socket, wherein the plug is cylindrical, negative electrode contact rings are arranged at the two ends of the top and the bottom of the plug, and a positive electrode contact surface is arranged in the middle of the plug; the socket is provided with a socket capable of accommodating the plug, a negative electrode elastic strip and a positive electrode elastic strip are arranged in the socket, the two negative electrode elastic strips correspond to the negative electrode contact rings at two ends of the plug respectively, and the positive electrode elastic strip corresponds to the positive electrode contact surface; the middle part of the positive electrode elastic strip and the middle part of the negative electrode elastic strip are concave downwards to form a connecting port, and the top of the connecting port of the negative electrode elastic strip is narrowed to form an elastic limiting part.

According to the utility model of the scheme, the plug comprises a first metal piece, a second metal piece and an insulating fixing piece, wherein the first metal piece is provided with two negative electrode contact rings and a connecting rod for connecting the two negative electrode contact rings; the second metal piece is provided with a fan-shaped part, and the cambered surface of the fan-shaped part is used as the positive electrode contact surface; the insulating fixing piece is in a cylindrical shape, and a slot matched with the shape of the second metal piece is formed in the middle of the insulating fixing piece.

Further, a protruding portion is arranged on one side of the slot of the insulating fixing piece, and the slot is arranged on the protruding portion.

Further, a notch is formed in the middle of one side, away from the slot, of the insulating fixing piece.

Further, reinforcing half rings are arranged on opposite sides of the two negative electrode contact rings of the first metal piece, and the distance between the two reinforcing half rings is equal to the width of the protruding portion of the insulating fixing piece.

Further, the second metal piece is further provided with a rod inserting portion, the fan-shaped portion and the rod inserting portion are integrally formed, and the rod inserting portion is used for being inserted into the slot of the insulating fixing piece and penetrating through the insulating fixing piece.

Furthermore, the bottom of the inserted rod part is provided with a welding hole.

According to the utility model of the scheme, the negative electrode elastic strip comprises long supporting edges at two sides and a first connecting port in the middle, and the long supporting edges are propped against the inner side wall of the socket; the top of the first connecting port is narrowed to form the elastic limiting part.

Further, the middle parts of the side edge and the bottom edge of the first connecting port are respectively provided with an outwards convex arc section.

According to the utility model of the scheme, the positive electrode elastic strip comprises short supporting edges at two sides and a second connecting port in the middle, a side plate is arranged in the socket at a position corresponding to the positive electrode elastic strip, and the short supporting edges are propped against the side plate; the second connecting port is formed by a concave arc section, and the curvature of the arc section is matched with the contact surface of the positive electrode.

The utility model according to the scheme has the beneficial effects that:

the plug is designed into a cylinder shape and is provided with a negative electrode contact ring and a positive electrode contact surface, and a socket of the socket is internally provided with a negative electrode elastic strip corresponding to the negative electrode contact ring and a positive electrode elastic strip corresponding to the positive electrode contact surface; the middle part of the positive electrode elastic strip and the middle part of the negative electrode elastic strip are concave downwards to form a connecting port, and the top of the connecting port of the negative electrode elastic strip is narrowed to form an elastic limiting part for limiting the plug.

When the plug is inserted into the socket, the negative electrode contact ring is in contact connection with the negative electrode elastic strip, and the positive electrode contact surface is in contact connection with the positive electrode elastic strip. The negative electrode contact ring is inserted into the connecting port of the negative electrode elastic strip and is limited by the elastic limiting part; the plug can rotate back and forth by taking the axis of the cylinder as the center, the negative electrode contact ring is always positioned in the connecting port and is contacted with the negative electrode elastic strip, the positive electrode contact surface is always contacted with the positive electrode elastic strip, and the plug is connected with the socket stably and reliably. In addition, in the process of rotating the plug in the socket, the plug wire can swing back and forth relative to the socket, so that the direction of the plug wire can be flexibly adjusted to adapt to specific use scenes.

Drawings

FIG. 1 is a schematic diagram of a plug and receptacle according to the present utility model in state one;

FIG. 2 is a schematic view of the internal structure of the socket in a state;

FIG. 3 is a schematic diagram of the plug and socket of the present utility model in a second state;

FIG. 4 is a schematic view of the internal structure of the socket in the second state;

FIG. 5 is a schematic diagram of a plug and receptacle according to the present utility model in a third state;

fig. 6 is a schematic view of the internal structure of the socket in the third state;

FIG. 7 is a schematic view of a plug according to the present utility model;

FIG. 8 is a schematic view of the plug with the housing removed;

FIG. 9 is an exploded view of the plug with the housing removed;

FIG. 10 is a schematic diagram of a socket according to the present utility model;

FIG. 11 is a schematic view of a socket from another perspective;

FIG. 12 is a cross-sectional view taken along the line A-A in FIG. 11;

FIG. 13 is a schematic view of the structure of the negative electrode elastic strip;

fig. 14 is a schematic structural view of the positive electrode elastic strip.

In the figure, 1, plug;

11. a first metal piece; 111. a negative electrode contact ring; 112. a connecting rod; 113. reinforcing the semi-rings;

12. a second metal piece; 121. a positive electrode contact surface; 122. a rod inserting part; 123. welding holes;

13. an insulating fixing member; 131. a slot; 132. a notch; 133. a boss;

14. a housing;

2. a socket; 201. a socket;

21. a negative electrode elastic strip; 211. a first connection port; 212. an elastic limit part; 213. a long support edge;

22. an anode elastic strip; 221. a second connection port; 222. a short support edge;

23. and a side plate.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put when the product is used, or the orientation or positional relationship conventionally understood by those skilled in the art, or the orientation or positional relationship conventionally put when the product is used, which is merely for convenience in describing the present utility model and simplifying the description, and is not indicative or implying that the apparatus or element to be referred must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 to 7 and 13, a rotatable contact type plugging structure comprises a plug 1 and a socket 2, wherein the plug 1 is cylindrical, two ends of the top and bottom of the cylindrical plug 1 are provided with negative electrode contact rings 111, and the middle of a plugging surface of the plug 1 is provided with a positive electrode contact surface 121. The socket 2 is provided with a socket 201 capable of accommodating the plug 1, two negative electrode elastic strips 21 and one positive electrode elastic strip 22 are arranged in the socket 201, the two negative electrode elastic strips 21 are positioned on two sides of the positive electrode elastic strip 22, the two negative electrode elastic strips 21 respectively correspond to the negative electrode contact rings 111 at two ends of the plug 1, and the positive electrode elastic strip 22 corresponds to the positive electrode contact surface 121 in the middle of the plug 1. The middle part of the positive electrode elastic strip 22 and the middle part of the negative electrode elastic strip 21 are concave downwards to form a connecting port, and the top of the connecting port of the negative electrode elastic strip 21 is narrowed to form an elastic limiting part 212.

When the plug 1 is inserted into the socket 2, the negative electrode contact ring 111 is inserted into the connection port of the negative electrode elastic strip 21 on the same side and is in contact connection with the negative electrode elastic strip 21; the positive electrode contact surface 121 falls into the connection port of the positive electrode elastic strip 22 to be in contact connection with the positive electrode elastic strip 22. When passing through the elastic limiting portion 212 of the negative electrode elastic strip 21, the negative electrode contact ring 111 presses and stretches the top of the connecting port of the negative electrode elastic strip 21 to the outside until the negative electrode contact ring 111 falls into the connecting port, and at this time, the elastic limiting portion 212 plays a role of limiting the plug 1. After the plug 1 is inserted into the socket 2, the plug 1 can rotate back and forth around the cylinder axis, and in the rotating process, the negative electrode contact ring 111 is always located in the connection port and contacts the negative electrode elastic strip 21, and the positive electrode contact surface 121 is always in contact with the positive electrode elastic strip 22. Thus, the wires of the plug 1 can be swung to a proper direction according to the use environment, and referring to fig. 1 to 6, it is shown that the wires are swung to different directions by rotating the plug 1.

When the plug 1 is pulled out of the socket 2, the negative electrode contact ring 111 of the plug 1 is pressed outwards and the elastic limiting part 212 of the negative electrode elastic strip 21 is spread until the negative electrode contact ring 111 is separated from the connection port, and the plug 1 is pulled out of the socket 2.

As shown in fig. 7 to 9, in the present utility model, the plug 1 includes a housing 14, a first metal piece 11, a second metal piece 12, and an insulating fixing piece 13, the first metal piece 11 including two negative electrode contact rings 111 and a connection rod 112 connecting the two negative electrode contact rings 111; the second metal piece 12 is provided with a sector, and the cambered surface of the sector is used as the positive electrode contact surface 121; the insulating fixing member 13 is cylindrical, and a slot 131 adapted to the shape of the second metal member 12 is provided in the middle.

It can be seen that the first metal piece 11 and the second metal piece 12 are assembled together by the insulating fixing piece 13 and are separated by the insulating fixing piece 13; first metal piece 11 and insulating fixing piece 13 are assembled: one end of the insulating fixing member 13 is plugged from the bottom of the first metal member 11 with a larger opening, and the other end is plugged after one end is installed in place; the second metal piece 12 and the insulating fixture 13 are then assembled: the second metal member 12 is inserted into the slot 131 of the insulating fixing member 13 from top to bottom. The insulating fixing member 13 may be made of thermoplastic plastic such as ABS resin or PC plastic, or thermosetting plastic.

In a preferred embodiment, a notch 132 is provided in the middle of the side of the insulating fixing member 13 away from the slot 131, so that the second metal member 12 can pass through the insulating fixing member 13 more conveniently, and the tail end of the second metal member 12 is exposed, so that the second metal member 12 can be connected with the positive electrode wire conveniently; the notch 132 is convenient for bending the insulating fixing piece 13, so that the insulating fixing piece 13 and the first metal piece 11 can be assembled; in addition, the notch 132 can reduce the material consumption of the insulating fixing member 13, thereby saving the cost. The slot 131 side of insulating mounting 13 is equipped with bellying 133, and slot 131 sets up on this bellying 133, and after insulating mounting 13 was inserted to second metalwork 12, the cambered surface parallel and level of bellying 133 and the fan-shaped portion of second metalwork 12, bellying 133 does benefit to the reinforcing first metalwork 11, second metalwork 12 equipment firmness.

In a preferred embodiment, the opposite sides of the two negative contact rings 111 of the first metal piece 11 are provided with reinforcing half rings 113, the spacing between the two reinforcing half rings 113 being equal to the width of the protruding portion 133 of the insulating fixture 13. The reinforcement half ring 113 serves to reinforce the structural strength of the first metal member 11. The two connecting rods 112 of the first metal piece 11 are arranged in parallel, and two ends of each connecting rod 112 are respectively connected with the reinforcing half rings 113 on two sides.

In a preferred embodiment, the second metal member 12 includes a fan-shaped portion and a rod-inserting portion 122, and the fan-shaped portion and the rod-inserting portion 122 are integrally formed, and the rod-inserting portion 122 is conveniently inserted into the insulating fixing member 13 and enables the second metal member 12 to be fixedly mounted with the insulating fixing member 13; the insertion rod portion 122 is also used to pass through the insulation fixing member 13 to connect the positive electrode lead. The bottom end of the inserted rod portion 122 is provided with a welding hole 123 for facilitating welding of the welding wire, and welding firmness of the positive electrode lead and the second metal piece 12 is improved.

After the first metal piece 11, the second metal piece 12 and the insulating fixing piece 13 are assembled, the wire welding of the plug 1 is performed: the positive electrode lead is welded with the second metal piece 12, and the negative electrode lead is welded with the first metal piece 11; finally, the housing 14 of the plug 1 is formed by an integral injection molding process, and the first metal piece 11, the second metal piece 12, the insulating fixing piece 13 and the wires are wrapped.

As shown in fig. 10 to 14, in the present utility model, the negative electrode elastic strip 21 includes two long supporting edges 213 and a first connecting port 211 in the middle, and the two long supporting edges 213 of the negative electrode elastic strip 21 respectively abut against the inner side walls of the socket 201, so as to increase the stability of the negative electrode elastic strip 21; the bottom of the long support side 213 passes through the bottom plate of the socket 201 to fix the negative electrode elastic strip 21, and is connectable with an external wire.

As shown in fig. 13, the connection between the first connection port 211 and the long support edge 213 is a curved section, so as to improve the elastic deformation effect of the negative electrode elastic strip 21, and when the negative electrode contact ring 111 of the plug 1 is inserted, a certain pressure can be relaxed, so that the negative electrode elastic strip 21 is prevented from being broken. The top of the first connection port 211 is narrowed to form the elastic limiting portion 212, and the function of the elastic limiting portion 212 is as described above, which is not described herein. The middle parts of the side and bottom edges of the first connecting port 211 are provided with convex arc sections so that the negative electrode elastic strip 21 can be better contacted with the negative electrode contact ring 111.

As shown in fig. 14, the positive electrode elastic strip 22 includes short support edges 222 on both sides and a second connection port 221 in the middle. The bottom of the short support edge 222 of the positive electrode elastic strip 22 passes through the bottom plate of the socket 201 to fix the positive electrode elastic strip 22 and can be connected with external leads. The connection between the second connection port 221 and the short supporting edge 222 is a curved section, so as to improve the elasticity of the positive electrode elastic strip 22. The second connection port 221 is formed by a concave arc section, and the curvature of the arc section is adapted to the curvature of the positive electrode contact surface 121.

Side plates are arranged in the middle of the socket 201 and correspond to the positions of the positive electrode elastic strips 22, and the side plates on two sides respectively prop against the two short supporting edges 222 of the positive electrode elastic strips 22, so that the stability of the positive electrode elastic strips 22 is improved.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The rotatable contact type plug-in structure comprises a plug and a socket, and is characterized in that the plug is cylindrical, negative electrode contact rings are arranged at the top and bottom ends of the plug, and a positive electrode contact surface is arranged in the middle of the plug;

the socket is provided with a socket for inserting the plug and providing a plug rotation space, a negative electrode elastic strip and a positive electrode elastic strip are arranged in the socket, the two negative electrode elastic strips respectively correspond to the negative electrode contact rings at two ends of the plug, and the positive electrode elastic strip corresponds to the positive electrode contact surface;

the middle part of the positive electrode elastic strip and the middle part of the negative electrode elastic strip are concave downwards to form a connecting port, and the top of the connecting port of the negative electrode elastic strip is narrowed to form an elastic limiting part for limiting the plug.

2. The rotatable contact-type plugging structure according to claim 1, wherein said plug comprises a first metal member, a second metal member and an insulating fixing member, said first metal member being provided with two of said negative electrode contact rings and a connecting rod connecting the two of said negative electrode contact rings;

the second metal piece is provided with a fan-shaped part, and the cambered surface of the fan-shaped part is used as the positive electrode contact surface;

the insulating fixing piece is in a cylindrical shape, and a slot matched with the shape of the second metal piece is formed in the middle of the insulating fixing piece.

3. The rotatable contact plug structure according to claim 2, wherein a protruding portion is provided on one side of the slot of the insulating fixing member, and the slot is provided on the protruding portion.

4. The rotatable contact plug structure according to claim 2, wherein a notch is provided in a middle portion of a side of the insulating fixing member away from the socket.

5. The rotatable contact plug structure according to claim 2, wherein the opposite sides of the two negative contact rings of the first metal member are provided with reinforcing half rings, and the distance between the reinforcing half rings is equal to the width of the protruding portion of the insulating fixing member.

6. The rotatable contact-type plugging structure according to claim 2, wherein the second metal member is further provided with a plugging rod portion, the fan-shaped portion and the plugging rod portion are integrally formed, and the plugging rod portion is used for being inserted into the slot of the insulating fixing member and passing through the insulating fixing member.

7. The rotatable contact plug structure of claim 6, wherein the bottom end of the plug portion is provided with a weld hole.

8. The rotatable contact plug structure of claim 1, wherein the negative electrode spring strip comprises two long support sides and a first connecting port in the middle, the long support sides abutting against the inner side walls of the socket; the top of the first connecting port is narrowed to form the elastic limiting part.

9. The rotatable contact plug structure of claim 8, wherein the first connector has convex arc segments at the middle of the side and bottom edges.

10. The rotatable contact-type plugging structure according to claim 1, wherein the positive electrode elastic strip comprises short supporting edges on two sides and a second connecting opening in the middle, a side plate is arranged in the socket at a position corresponding to the positive electrode elastic strip, and the short supporting edges are propped against the side plate; the second connecting port is formed by a concave arc section, and the curvature of the arc section is matched with the contact surface of the positive electrode.